The police shoot Michael Myers in the torso with a shotgun. He is blown back and falls down a mine shaft. The cops throw a stick of dynamite down the shaft which causes it to cave in. Later that night, Jamie Lloyd "becomes" Michael Myers and kills her stepmother with a pair of scissors.
Poison Gom Jabbar
Jack Sayer: You're huntin' it, ain't ya? Yeah, you're huntin' it, all right. Just like me.
Dr. Loomis: What are you hunting, Mr. Sayer?
Jack Sayer: Apocalypse, End of the World, Armageddon. It's always got a face and a name. I've been huntin' the bastard for 30 years, give or take. Come close a time or two. Too damn close! You can't kill damnation, Mister. It don't die like a man dies.
Dr. Loomis: I know that, Mr. Sayer.